Brother 1920CN - Color Inkjet - Fax Manuals

Manuals and User Guides for Brother 1920CN - Color Inkjet - Fax. We have 1 Brother 1920CN - Color Inkjet - Fax manual available for free PDF download: Service Manual

Brother 1920CN - Color Inkjet - Fax Service Manual

Brother 1920CN - Color Inkjet - Fax Service Manual (286 pages)

Service Manual  
Brand: Brother | Category: All in One Printer | Size: 6.9 MB
Table of contents
Service Manual1................................................................................................................................................................
Safety Information4................................................................................................................................................................
General Description6................................................................................................................................................................
Machine Outline7................................................................................................................................................................
Specifications8................................................................................................................................................................
Installing The Update Data To The Machine28................................................................................................................................................................
Table Of Contents31................................................................................................................................................................
Theory Of Operation31................................................................................................................................................................
Overview32................................................................................................................................................................
Mechanisms33................................................................................................................................................................
Scanner Mechanism34................................................................................................................................................................
Laser Printing Mechanism36................................................................................................................................................................
Paper Pick-up And Registration Mechanism36................................................................................................................................................................
Print Process Mechanism37................................................................................................................................................................
Heat-fixing Mechanism39................................................................................................................................................................
Paper Ejecting Mechanism40................................................................................................................................................................
Sensors And Actuators41................................................................................................................................................................
Control Electronics43................................................................................................................................................................
Disassembly/reassembly47................................................................................................................................................................
Safety Precautions47................................................................................................................................................................
Preparation48................................................................................................................................................................
How To Access The Object Component48................................................................................................................................................................
Disassembly Order Flow49................................................................................................................................................................
Lower Rear Cover50................................................................................................................................................................
Access Plates R And F50................................................................................................................................................................
Paper Cassette51................................................................................................................................................................
Document Tray Assy52................................................................................................................................................................
Upper Rear Cover54................................................................................................................................................................
Adf Unit55................................................................................................................................................................
Disassembling The Adf Unit57................................................................................................................................................................
Scanner Unit And Control Panel Assy62................................................................................................................................................................
Disassembling The Scanner Unit65................................................................................................................................................................
Disassembling The Control Panel Assy70................................................................................................................................................................
Relay Pcb71................................................................................................................................................................
Speaker72................................................................................................................................................................
Scanner Mount73................................................................................................................................................................
Paper Sub Tray And Tray Holder76................................................................................................................................................................
Vc Cover, Vc Bracket, And Vc Connector Pcb (for Models Supporting Video Capture77................................................................................................................................................................
Front Cover78................................................................................................................................................................
Front Sub Cover (for Models Not Supporting Video Capture78................................................................................................................................................................
Outer Chute And Paper Pinch Rollers79................................................................................................................................................................
Main Cover80................................................................................................................................................................
Switch Cover (for Models Not Equipped With A Power Switch81................................................................................................................................................................
Laser Unit82................................................................................................................................................................
Heat-fixing Unit And Fu Lamp83................................................................................................................................................................
Fan87................................................................................................................................................................
Drive Gear Assy And Main Motor Assy89................................................................................................................................................................
Ncu Shield And Ncu Pcb91................................................................................................................................................................
Bottom Plate, Main Pcb, And Bottom Insulation Film93................................................................................................................................................................
Low-voltage Power Supply Pcb And Power Inlet97................................................................................................................................................................
Inner Insulation Film, High-voltage Power Supply Pcb, Engine Pcb, And 2nd Cassette Relay Pcb99................................................................................................................................................................
Toner Sensor (light-receiver) Pcb And Toner Sensor (led) Pcb101................................................................................................................................................................
Gears And Paper Pick-up Roller102................................................................................................................................................................
Paper Feed Roller Assy103................................................................................................................................................................
Clutch Levers, Cassette Guide L, And Solenoid104................................................................................................................................................................
Cleaning Of High-voltage Contacts And Grounding Contacts105................................................................................................................................................................
Lubrication107................................................................................................................................................................
1 ] Adf Unit107................................................................................................................................................................
2 ] Scanner Mount108................................................................................................................................................................
3 ] Drive Gear Assy109................................................................................................................................................................
4 ] Paper Cassette110................................................................................................................................................................
Entry Into The Maintenance Mode113................................................................................................................................................................
List Of Maintenance-mode Functions114................................................................................................................................................................
Detailed Description Of Maintenance-mode Functions116................................................................................................................................................................
Eeprom Parameter Initialization116................................................................................................................................................................
Printout Of Scanning Compensation Data117................................................................................................................................................................
Adf Performance Test119................................................................................................................................................................
Test Pattern 1120................................................................................................................................................................
Firmware Switch Setting And Printout121................................................................................................................................................................
Operational Check Of Lcd166................................................................................................................................................................
Operational Check Of Control Panel Pcb166................................................................................................................................................................
Sensor Operational Check168................................................................................................................................................................
Ccd Scanner Area Setting169................................................................................................................................................................
Eeprom Customizing169................................................................................................................................................................
Erasure Of Received Fax Messages Temporarily Stored In The Flash Memory170................................................................................................................................................................
Machine Error Code Indication170................................................................................................................................................................
Output Of Transmission Log To The Telephone Line (not Applicable To Machines W/o Fax171................................................................................................................................................................
Cancellation Of The Memory Security Mode (applicable To The European Version W/ Fax Only171................................................................................................................................................................
Error Indication174................................................................................................................................................................
Machine Errors174................................................................................................................................................................
1 ] Error Messages On The Lcd174................................................................................................................................................................
Machine Error Xx175................................................................................................................................................................
Communications Errors (not Applicable To Machines W/o Fax179................................................................................................................................................................
Troubleshooting189................................................................................................................................................................
Introduction189................................................................................................................................................................
Precautions189................................................................................................................................................................
Checking Prior To Troubleshooting189................................................................................................................................................................
Troubleshooting Procedures191................................................................................................................................................................
1 ] Control Panel Related191................................................................................................................................................................
2 ] Telephone Related191................................................................................................................................................................
3 ] Communications Related192................................................................................................................................................................
4 ] Paper/document Feeding Related192................................................................................................................................................................
5 ] Print-image Related193................................................................................................................................................................
6 ] Pc-driven Or Video Capture-driven Printing199................................................................................................................................................................
Location Of High-voltage Contacts And Grounding Contacts200................................................................................................................................................................

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